That includes Canadian censuses, voter lists, vital records,
military records, passenger lists and more. Some of the site's
records, such as border-crossing records and the US and Canada
Passenger and Immigration Lists Index, 1500s-1900s, also pertain to
those tracing US ancestors.

Once you run a search and click on a result, you'll be prompted to
sign up for a free account in order to view the matching record.